A.Peclet number
B.Nusselt number
C.Grashof number
D.Weber number
E.Prandtl number
A.two similar metal wires
B.two dissimliar metal wires
C.two strips of metals welded together having different coefficients of thermal expansion
D.two strips of metals welded together having same coefficient of thermal expansion
A.CO2 only
B.O2 only
C.CO only
D.CO2 O2 and CO
A.?20? to 1600?C
B.0? to 400?C
C.60? to 600?C
D.800? to 1800?C
A.Ethyl mercaptan
B.Amyl nitrate
C.Methyl tertiary butyl ether
D.Tetra ethyl lead
A.the fluid is frictionless
B.the fluid compressibility is greater than zero
C.the density does not change with pressure and temperature
D.the temperature of fluid remains constant
A.mercury
B.ethyl alcohol
C.toluene
D.pentane
A.gases only
B.liquids only
C.solids only
D.gases liquids and solids
A.for disinfection
B.for taste and colour control
C.as algicides
D.for weed control in reservoirs
